Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2019 12 18.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(AQUA) AQUA Lat/Lon    Distance(km)  Time Diff(sec)
 12/19/2019   04:44:30   (  68.44, -26.12) 12/19/2019   04:44:57  (  68.44, -26.07)    2.32                27
 12/19/2019   05:34:19   ( -71.42, 145.72) 12/19/2019   05:33:30  ( -71.43, 145.79)    2.46                49
 12/21/2019   21:00:59   (  68.24,  89.52) 12/21/2019   21:01:30  (  68.25,  89.57)    2.32                31
 12/21/2019   21:50:33   ( -72.01, -97.31) 12/21/2019   21:49:49  ( -72.00, -97.37)    2.28                44
 12/24/2019   13:17:26   (  68.15,-154.70) 12/24/2019   13:18:01  (  68.15,-154.66)    1.84                35
 12/24/2019   14:07:01   ( -71.87,  18.33) 12/24/2019   14:06:21  ( -71.86,  18.27)    2.20                40
 12/27/2019   05:33:52   (  68.11, -38.85) 12/27/2019   05:34:31  (  68.11, -38.83)    0.92                39
 12/27/2019   06:23:27   ( -71.83, 134.16) 12/27/2019   06:22:51  ( -71.82, 134.09)    2.61                36
 12/29/2019   21:50:14   (  68.23,  77.21) 12/29/2019   21:50:57  (  68.23,  77.20)    0.47                43